National Hardware Galvanized Round Rail Steel Barn Door Rail End Cap is designed specifically for use with round rail systems. This end cap effectively closes the end of the rail to prevent birds from nesting, helping to maintain a clean and functional rail setup. It comes complete with a bolt, nut, and washer for secure installation. The galvanized finish provides durable WeatherGuard protection, ensuring long-lasting resistance against the elements and corrosion. Model Number: N193-839